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  <title>检查方法是否已定义</title>

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</div><hr /><div id="reflectionclass.hasmethod" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">ReflectionClass::hasMethod</h1>
  <p class="verinfo">(PHP 5 &gt;= 5.1.0)</p><p class="refpurpose"><span class="refname">ReflectionClass::hasMethod</span> &mdash; <span class="dc-title">检查方法是否已定义</span></p>

 </div>

 <div class="refsect1 description" id="refsect1-reflectionclass.hasmethod-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="type">bool</span> <span class="methodname"><strong>ReflectionClass::hasMethod</strong></span>
    ( <span class="methodparam"><span class="type">string</span> <code class="parameter">$name</code></span>
   )</div>

  <p class="para rdfs-comment">
   检查一个类中指定的方法是否已定义。
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-reflectionclass.hasmethod-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">name</code></em></dt>

     <dd>

      <p class="para">
       要检查的方法的名称。
      </p>
     </dd>

    
   </dl>

  </p>
 </div>


 <div class="refsect1 returnvalues" id="refsect1-reflectionclass.hasmethod-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   如果有这个方法返回 <strong><code>TRUE</code></strong>，否则返回 <strong><code>FALSE</code></strong>。
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-reflectionclass.hasmethod-examples">
  <h3 class="title">范例</h3>
  <p class="para">
   <div class="example" id="example-5103">
    <p><strong>Example #1 <span class="methodname"><strong>ReflectionClass::hasMethod()</strong></span> 例子</strong></p>
    <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br /></span><span style="color: #007700">Class&nbsp;</span><span style="color: #0000BB">C&nbsp;</span><span style="color: #007700">{<br />&nbsp;&nbsp;&nbsp;&nbsp;public&nbsp;function&nbsp;</span><span style="color: #0000BB">publicFoo</span><span style="color: #007700">()&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;</span><span style="color: #0000BB">true</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;protected&nbsp;function&nbsp;</span><span style="color: #0000BB">protectedFoo</span><span style="color: #007700">()&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;</span><span style="color: #0000BB">true</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;private&nbsp;function&nbsp;</span><span style="color: #0000BB">privateFoo</span><span style="color: #007700">()&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;</span><span style="color: #0000BB">true</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br /><br />&nbsp;&nbsp;&nbsp;&nbsp;static&nbsp;function&nbsp;</span><span style="color: #0000BB">staticFoo</span><span style="color: #007700">()&nbsp;{<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;return&nbsp;</span><span style="color: #0000BB">true</span><span style="color: #007700">;<br />&nbsp;&nbsp;&nbsp;&nbsp;}<br />}<br /><br /></span><span style="color: #0000BB">$rc&nbsp;</span><span style="color: #007700">=&nbsp;new&nbsp;</span><span style="color: #0000BB">ReflectionClass</span><span style="color: #007700">(</span><span style="color: #DD0000">"C"</span><span style="color: #007700">);<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$rc</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">hasMethod</span><span style="color: #007700">(</span><span style="color: #DD0000">'publicFoo'</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$rc</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">hasMethod</span><span style="color: #007700">(</span><span style="color: #DD0000">'protectedFoo'</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$rc</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">hasMethod</span><span style="color: #007700">(</span><span style="color: #DD0000">'privateFoo'</span><span style="color: #007700">));<br /><br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$rc</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">hasMethod</span><span style="color: #007700">(</span><span style="color: #DD0000">'staticFoo'</span><span style="color: #007700">));<br /><br /></span><span style="color: #FF8000">//&nbsp;C&nbsp;should&nbsp;not&nbsp;have&nbsp;method&nbsp;bar<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$rc</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">hasMethod</span><span style="color: #007700">(</span><span style="color: #DD0000">'bar'</span><span style="color: #007700">));<br /><br /></span><span style="color: #FF8000">//&nbsp;Method&nbsp;names&nbsp;are&nbsp;case&nbsp;insensitive<br /></span><span style="color: #0000BB">var_dump</span><span style="color: #007700">(</span><span style="color: #0000BB">$rc</span><span style="color: #007700">-&gt;</span><span style="color: #0000BB">hasMethod</span><span style="color: #007700">(</span><span style="color: #DD0000">'PUBLICfOO'</span><span style="color: #007700">));<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
    </div>

    <div class="example-contents"><p>以上例程会输出：</p></div>
    <div class="example-contents screen">
<div class="cdata"><pre>
bool(true)
bool(true)
bool(true)
bool(true)
bool(false)
bool(true)
</pre></div>
    </div>
   </div>
  </p>
 </div>


 <div class="refsect1 seealso" id="refsect1-reflectionclass.hasmethod-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="methodname"><a href="reflectionclass.hasconstant.html" class="methodname" rel="rdfs-seeAlso">ReflectionClass::hasConstant()</a> - 检查常量是否已经定义</span></li>
    <li class="member"><span class="methodname"><a href="reflectionclass.hasproperty.html" class="methodname" rel="rdfs-seeAlso">ReflectionClass::hasProperty()</a> - 检查属性是否已定义</span></li>
   </ul>
  </p>
 </div>


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